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From "Carlos Sanchez (JIRA)" <j...@codehaus.org>
Subject [jira] Commented: (MNG-2227) Can't use repositories in protocols other than http
Date Fri, 14 Apr 2006 01:24:48 GMT
    [ http://jira.codehaus.org/browse/MNG-2227?page=comments#action_63541 ] 

Carlos Sanchez commented on MNG-2227:
-------------------------------------

The workaround is adding the central repo to the list of repos, maven checks it before the
scm repo (by chance) and download the necessary files.


> Can't use repositories in protocols other than http
> ---------------------------------------------------
>
>          Key: MNG-2227
>          URL: http://jira.codehaus.org/browse/MNG-2227
>      Project: Maven 2
>         Type: Bug

>   Components: Repositories
>     Versions: 2.0.4
>     Reporter: Carlos Sanchez
>      Fix For: 2.0.5
>  Attachments: log.txt
>
>
> When adding the wagon-scm to the build extensions to *add* another scm based repo (not
to replace the http one) Maven fails because tries to validate the scm repo before downloading
the wagon-scm jar from the http repo.
>   <build>
>     <extensions>
>       <extension>
>         <groupId>org.apache.maven.wagon</groupId>
>         <artifactId>wagon-scm</artifactId>
>         <version>1.0-alpha-7-SNAPSHOT</version>
>       </extension>
>     </extensions>
>   </build>
> [WARNING] repository metadata for: 'snapshot org.apache.maven.wagon:wagon-scm:1.0-alpha-7-SNAPSHOT'
could not be retrieved from repository: acme due to an error: Unsupported Protocol: 'scm':
Cannot find wagon which supports the requested protocol: scm
> [INFO] Repository 'acme' will be blacklisted
> [DEBUG] Exception
> org.apache.maven.wagon.TransferFailedException: Unsupported Protocol: 'scm': Cannot find
wagon which supports the requested protocol: scm
>         at org.apache.maven.artifact.manager.DefaultWagonManager.getRemoteFile(DefaultWagonManager.java:325)
>         at org.apache.maven.artifact.manager.DefaultWagonManager.getArtifactMetadata(DefaultWagonManager.java:295)
>         at org.apache.maven.artifact.repository.metadata.DefaultRepositoryMetadataManager.resolveAlways(DefaultRepositoryMetadataManager.java:356)
>         at org.apache.maven.artifact.repository.metadata.DefaultRepositoryMetadataManager.resolve(DefaultRepositoryMetadataManager.java:91)
>         at org.apache.maven.artifact.transform.AbstractVersionTransformation.resolveVersion(AbstractVersionTransformation.java:62)
>         at org.apache.maven.artifact.transform.SnapshotTransformation.transformForResolve(SnapshotTransformation.java:60)
>         at org.apache.maven.artifact.transform.DefaultArtifactTransformationManager.transformForResolve(DefaultArtifactTransformationManager.java:40)
>         at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:104)
>         at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:63)
>         at org.apache.maven.project.DefaultMavenProjectBuilder.findModelFromRepository(DefaultMavenProjectBuilder.java:467)
>         at org.apache.maven.project.DefaultMavenProjectBuilder.buildFromRepository(DefaultMavenProjectBuilder.java:225)
>         at org.apache.maven.project.artifact.MavenMetadataSource.retrieve(MavenMetadataSource.java:102)
>         at org.apache.maven.artifact.resolver.DefaultArtifactCollector.recurse(DefaultArtifactCollector.java:275)
>         at org.apache.maven.artifact.resolver.DefaultArtifactCollector.collect(DefaultArtifactCollector.java:67)
>         at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolveTransitively(DefaultArtifactResolver.java:223)
>         at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolveTransitively(DefaultArtifactResolver.java:211)
>         at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolveTransitively(DefaultArtifactResolver.java:182)
>         at org.apache.maven.extension.DefaultExtensionManager.addExtension(DefaultExtensionManager.java:68)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.findExtensions(DefaultLifecycleExecutor.java:155)
>         at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:138)
>         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:322)
>         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:115)
>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:256)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:585)
>         at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
>         at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
>         at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
>         at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
> Caused by: org.apache.maven.wagon.UnsupportedProtocolException: Cannot find wagon which
supports the requested protocol: scm
>         at org.apache.maven.artifact.manager.DefaultWagonManager.getWagon(DefaultWagonManager.java:99)
>         at org.apache.maven.artifact.manager.DefaultWagonManager.getRemoteFile(DefaultWagonManager.java:319)
>         ... 30 more
> Caused by: org.codehaus.plexus.component.repository.exception.ComponentLookupException:
Component descriptor cannot be found in the component repository: org.apache.maven.wagon.Wagonscm.
>         at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:323)
>         at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:440)
>         at org.apache.maven.artifact.manager.DefaultWagonManager.getWagon(DefaultWagonManager.java:94)
>         ... 31 more

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